Rare Vintage 1980s Wilson Pro 1000 B1256 Last Bilt Leather Basketball Indr/Outdr This rare vintage Wilson Pro 1000 B1256 Last Bilt Leather Basketball Indr/Outdr is a true gem for any basketball enthusiast. With its brown leather material and 29.5" size, this ball is perfect for both indoor and outdoor play. Overall the ball is in good shape with some wear and tear which is expected given its age. Our number one goal is complete guest satisfaction!